Title:
HIGH CORROSION RESISTANT MATERIAL HAVING ZINC HYDROXIDE CORROSION PREVENTING FILM
Document Type and Number:
Japanese Patent JPH06264260
Kind Code:
A
Abstract:
PURPOSE: To obtain a material having excellent corrosion resistance and durability in a severe environment such as a coastal area or under corrosive condition such as exposure to acidic rain.
CONSTITUTION: This high corrosion resistant material essentially consists of stainless steel containing >13wt.% Cr, and the surface is coated with a film having zinc hydroxide as the effective component. The hydroxide is Zn (OH)2, ZnCl2.4Zn(OH)2 or ZnCO3.Zn(OH)2H2O. Thereby, due to the anticorrosion effect of Zn hydroxide and pH buffering effect with stainless steel having good corrosion resistance, the material has excellent corrosion resistance even in a corrosive environment with the presence of clorine ion.
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Inventors:
ADACHI TOSHIRO
HARADA WAKAHIRO
NOGAMI MAKOTO
HARADA WAKAHIRO
NOGAMI MAKOTO
Application Number:
JP5553893A
Publication Date:
September 20, 1994
Filing Date:
March 16, 1993
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
International Classes:
C23C26/00; C23F15/00; (IPC1-7): C23C26/00; C23F15/00
Attorney, Agent or Firm:
Wataru Ogura